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The cut side gets exposed do the oxygen in the air and starts to react. Polyphenols are oxidised by oxygen from air when the 'polyphenol oxidase' enzyme is freed after cellular disruption (damage).
So the browning of cut apples is oxidation - the same as rust. Potatoes, apples and avocados to name a few do it. if you squeeze lemon juice on avocados, and put potatoes and apples in acidulated water (water with lemon juice) they won't oxidize.
A different thought...
It rots. The apple has been decomposed. So the answer would be decomposition.
What else can I help you with?
What browns faster a banana or an apple?
A apple
What happens when something reacts?
It changes chemically.
What happens if you but hash up your butt?
You get hash browns.
What happens to an apple when hit by a bullet?
Applesauce- instant! The apple blows apart.
What happens when you put an apple in vinegar?
The apple turns brown and loses color.
What happens to a cut apple when you live it out for a whole day?
It will turn into a rooten apple.
What happens chemically to a kernel of corn when popped?
Nothing. Popping is a physical change.
What happens when aluminum combines with helium?
Helium is chemically inert and does not react with aluminium
What happens in the stomach during the digestion?
what orgens resposible for digestion
What happens in the chemical reaction that produces salt?
sodium and chlorine (Na and Cl) chemically combine
What happens to an apple if you put it in a bag?
if you leave it in there it will rot...
What happens when you give a Golden Apple to a Pegasus?
You are able to find a golden apple picture of a horse with wings.
